Examples of weka.filters.unsupervised.attribute.RemoveType

Package weka.filters.unsupervised.attribute

Examples of weka.filters.unsupervised.attribute.RemoveType

weka.filters.unsupervised.attribute.RemoveType

Removes attributes of a given type.

Valid options are:

 -T <nominal|numeric|string|date|relational> Attribute type to delete. Valid options are "nominal",  "numeric", "string", "date" and "relational". (default "string")

 -V Invert matching sense (i.e. only keep specified columns)

@author Richard Kirkby (rkirkby@cs.waikato.ac.nz) @version $Revision: 5547 $

    Instances trainingData = insts;
    trainingData = m_lagMaker.getTransformedData(trainingData);
    // System.err.println(trainingData);
    m_transformedHeader = new Instances(trainingData, 0);


    m_dateRemover = new RemoveType();
    m_dateRemover.setOptions(new String[] { "-T", "date" });
    m_dateRemover.setInputFormat(trainingData);
    trainingData = Filter.useFilter(trainingData, m_dateRemover);


    // m_lastHistoricInstance = insts.instance(insts.numInstances() - 1);

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  /** Remove string attributes from default fixture instances */
  protected void setUp() throws Exception {


    super.setUp();
    RemoveType af = new RemoveType();
    af.setInputFormat(m_Instances);
    m_Instances = Filter.useFilter(m_Instances, af);
    for (int i = 0; i < m_Instances.numAttributes(); i++) {
      assertTrue("Problem with AttributeTypeFilter in setup", 
             m_Instances.attribute(i).type() != Attribute.STRING);
    }

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        RemoveType.TAGS_ATTRIBUTETYPE);
    invert = true;
  }  else {
    throw ex;
  }
  RemoveType attFilter = new RemoveType();
  attFilter.setAttributeType(tag);
  attFilter.setInvertSelection(invert);
  attFilter.setInputFormat(train);
  train = Filter.useFilter(train, attFilter);
  attFilter.batchFinished();
  test = Filter.useFilter(test, attFilter);
  counter++;
  if (counter > 2) {
    throw ex;
  }

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